
import java.io.*;
import java.util.*;

/**
 * 
 */
public class Department {

      private ArrayList<Instructor> instructors;

    public Department(ArrayList<Instructor> instructors) throws Exception {
         if (instructors.isEmpty()){
             throw new Exception("一个系必须由一个或多个指导教师组成！");
         }

        this.instructors = instructors;
    }


}